The Advanced Medium-Range Air-to-Air Missile (AMRAAM) AIM-120 development program began in 1975. Designated as the successor to the AIM-7 Sparrow, the AIM-120A entered service in 1991. An advanced version, the AIM-120C, with an improved active radar seeking head and a compressed carriage, allowing internal stowage by the F-22, entered service in 1993. The F-22 can hold up to six AIM-120Cs in its central internal weapons bay.%n
